Corvette Central Mufflers
Thread Starter
Instructor
Joined: Mar 2015
Posts: 189
Likes: 0
From: Los Alamos NM
Corvette Central Mufflers
I bought the Corvette Central mufflers that are designed to factory specs and had them put on this past week. What a difference it made. I had to do some freeway driving that has been a nightmare because of the drone. Today it was so pleasant. I could even hear my stereo for the first time. I really like these mufflers.
Thread Starter
Instructor
Joined: Mar 2015
Posts: 189
Likes: 0
From: Los Alamos NM
There were no mufflers before. It was straight through pipes. Driving on the freeway was mind-numbing from the noise. There's still a rumble, but it is reasonable and I can talk to my daughter when we go out on a ride.
Race Director
Joined: Dec 2002
Posts: 13,348
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From: SCMR Rat Pack'r Charter Member..Great Bend KS
Having driven my C4 on several cross-country trips, I understand the dissatisfaction with loud/droning exhausts. There is a lot to be said for stock-type mufflers.
Le Mans Master
Joined: Jul 2009
Posts: 6,381
Likes: 66
From: SF bay area C.A.
C4 of the Year Finalist
Excuse me but it looks like you have been on here long enough to know we like to go to the lite side once and a while.
Last edited by kimmer; Aug 8, 2015 at 09:39 PM.
Race Director
Joined: Aug 2000
Posts: 11,470
Likes: 764
most stock, aftermarket mufflers have dual functioning tips, and I'm guessing they flow a tad bit better. I had a set of stock replacements (from Mid-America Corvette) on my 85 and they actually get better or sound better with age. 
on the no drone thing. I had a set of "monza's" on my 85 when I bought - terrible drone, replaced with a set of walker ultraflows - really terrible, ear piercing drone. i ended up with the stock replacements. believe it or not, they actually sound pretty good. not factory quiet - a little louder with a slight rumble. 
on the no drone thing. I had a set of "monza's" on my 85 when I bought - terrible drone, replaced with a set of walker ultraflows - really terrible, ear piercing drone. i ended up with the stock replacements. believe it or not, they actually sound pretty good. not factory quiet - a little louder with a slight rumble.
Last edited by Joe C; Aug 9, 2015 at 07:57 AM.
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Race Director
Joined: Dec 2002
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From: SCMR Rat Pack'r Charter Member..Great Bend KS
It's been my experience that mufflers with flat tops/bottoms will produce drone. Mufflers that have no flats...i.e. are oval-shaped....have a good chance of being drone-free.
I believe it has something to do with resonances set up by the pulsing movements of the flat surfaces....similar to a base drum. But, I've been wrong before.
I believe it has something to do with resonances set up by the pulsing movements of the flat surfaces....similar to a base drum. But, I've been wrong before.
Burning Brakes
Joined: Oct 2006
Posts: 800
Likes: 45
From: San Diego CA
Corvette Central Mufflers
I have the OBX cat back system. Has a really nice rumble and no drone at all. I purchased some stock tips from a member here as I don't like chrome dual tips. I was actually going to remove the mufflers doing a muffler delete with just tailpipes and existing obx resonators. But I think I'd be asking for trouble.